JP2557572Y2 - tweezers - Google Patents

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】本考案は外科、歯科などにおいて
医療のために用いられる使い捨てに適した合成樹脂製の
ピンセットに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disposable synthetic resin tweezers used for medical treatment in surgery, dentistry and the like.

【０００２】[0002]

【従来の技術】医療に用いられるピンセットは、従来か
ら長期使用、煮沸消毒に耐えることなどの点から金属で
作られていたが、減菌や消毒が万一不完全であると薬品
や熱に大きな耐性をもつ細菌、ウイルスが他の患者に伝
染し、場合によっては生命に危険を及ぼすので一人の患
者に使用したピンセットを再使用することなく廃棄する
ことが望まれるようになってきた。2. Description of the Related Art Tweezers used for medical treatment have conventionally been made of metal from the viewpoint of long-term use and resistance to boiling disinfection, but if sterilization or disinfection is imperfect, chemicals and heat will be generated. Since highly resistant bacteria and viruses can be transmitted to other patients and can be life-threatening, it has become desirable to discard the tweezers used in one patient without reusing them.

【０００３】そこで、安価に提供できるとともに大量生
産が可能で使い捨てに適した合成樹脂製のピンセットが
一部で使用されるようになったが、金属製ピンセットと
同じ形状、構造即ち先端につまみ部を有する互いにほぼ
平行な二本の腕部片を基端で連結してつまみ部を互いに
少し開いた状態で対向させた成形品であるため、金属製
のものと比べて明かに剛性が劣り、腕部片を指先で挟み
押えたとき連結部がねじれてつまみ部が前後或いは上下
にずれ、目的物を持つことができない場合が多く使用に
耐えない。[0003] Therefore, synthetic resin tweezers which can be provided at a low cost, can be mass-produced, and are suitable for disposable use have been partially used. However, the tweezers have the same shape and structure as metal tweezers, that is, a knob at the tip. Since it is a molded product in which two substantially parallel arm portions having a base portion are connected at the base end and the knob portions are slightly opened to face each other, the rigidity is clearly inferior to that of metal, When the arm piece is pinched and pressed with the fingertip, the connecting part is twisted and the knob part shifts back and forth or up and down, and in many cases, it is not possible to hold the target object, so that it cannot be used.

【０００４】そこで、連結部のねじれを防止し併せて弾
力性を向上させる目的で二本の腕部片の間につまみ部を
開かせる方向へ働くばね片を補強部材として架設し、且
つ腕部片、連結部、ばね片を一体品に形成した合成樹脂
製のピンセットが実開平２−９８９１１号公報に提示さ
れている。[0004] Therefore, in order to prevent the torsion of the connecting portion and improve the elasticity, a spring piece acting in the direction of opening the knob portion between the two arm pieces is provided as a reinforcing member, and the arm portion is provided. Japanese Patent Laid-Open Publication No. 2-98911 discloses a synthetic resin tweezers in which a piece, a connecting portion, and a spring piece are integrally formed.

【０００５】前記公報に提示されているピンセットのば
ね片は剛性と弾力性の両方の向上を計るものであり、例
えば剛性を高めるため強固なものとすると弾力性が低下
するので、これらを両立させる適当な強度のばね片とし
ている。The spring piece of the tweezers disclosed in the above publication is intended to improve both the rigidity and the elasticity. For example, if the spring piece is made rigid to increase the rigidity, the elasticity is reduced. The spring piece has an appropriate strength.

【０００６】従って、つまみ部のずれを防止する充分な
剛性が与えられず、腕部片を指先で挟み押えたとき斜め
方向の力が加わると容易にずれてしまうという欠点を完
全に解消することができない。また、このように剛性が
低いと目的物が安定よくつまみにくい物品、例えば球状
の物品の場合は大きな力で挟もうとするため僅かなバラ
ンスの崩れでずれを生じ、つまんだ物品を落してしまう
という問題を生じやすい。Accordingly, it is not possible to completely eliminate the drawback that sufficient rigidity for preventing the shift of the knob portion is not provided and the arm portion is easily shifted when an oblique force is applied when the arm piece is pinched and pressed by the fingertip. Can not. In addition, if the rigidity is low as described above, the object is stably hard to pick up, for example, in the case of a spherical article, a slight force is improperly balanced because it tries to sandwich it with a large force, and the pinched article is dropped. The problem is easy to occur.

【０００７】[0007]

【考案が解決しようとする課題】本考案が解決しようと
する課題は、安価で使い捨てに適した合成樹脂製のピン
セットが剛性に劣り、そのためにつまみ部が前後或いは
上下にずれて喰違いを生じやすく、目的物を確実に且つ
安定よくつまむことが困難である、という点である。The problem to be solved by the present invention is that tweezers made of inexpensive and disposable synthetic resin are inferior in rigidity, and as a result, the knobs are shifted back and forth or up and down, resulting in a difference. That is, it is difficult to pinch the target object reliably and stably.

【０００８】[0008]

【課題を解決するための手段】本考案は、先端につまみ
部を有する二本の腕部片を互いにほぼ平行且つつまみ部
を互いに少し離した状態で対向させて基端で連結したピ
ンセットを合成樹脂製とした場合に発生する前記課題を
解決するために、横突縁と縦突縁とからなる端面＋形の
係合突縁を一方の腕部片の内側に突出形成するととも
に、縦突縁を挟んだ両側で横突縁に上下反対面で重なる
係止突縁をもう一方の腕部片の内側に突出形成するとい
う構成とした。According to the present invention, a pair of tweezers is provided in which two arm pieces each having a knob at a distal end thereof are connected to each other at a base end with the arms almost parallel to each other and the knobs being slightly apart from each other. In order to solve the above-mentioned problem that occurs when made of resin, an end surface + shaped engaging projection formed by a horizontal projecting edge and a vertical projecting edge is formed to protrude inside one of the arm pieces, and A locking projection that overlaps the lateral projection on the opposite side on both sides of the edge is formed to protrude inside the other arm piece.

【０００９】[0009]

【作用】腕部片の外側面を指先で押えてつまみ部を接近
させるとき、係止突縁が対向する横突縁の上面および下
面に重なって上下のずれを阻止し、また係止突縁が縦突
縁の前面および後面に接して前後のずれを阻止して脱脂
綿、ガーゼ、薬品或いは患部などの目的物を挟みつまむ
ものであり、つまみ部に喰違いを生じさせることなく目
的物をつまませる、という目的が達成される。When the outer surface of the arm piece is pressed with a fingertip to bring the knob closer, the locking ridge overlaps the upper and lower surfaces of the opposing horizontal ridges to prevent vertical displacement, and furthermore, the locking ridge. Is to contact the front and rear surfaces of the vertical ridge to prevent slippage, and to pinch the target object such as absorbent cotton, gauze, chemicals, or affected area, and to pinch the target object without causing a difference in the knob part. The purpose of circulating is achieved.

【００１０】[0010]

【実施例】図面を参照して本考案の実施例を説明する
と、先端につまみ部１、３を有する二本の腕部片２、４
が互いにほぼ平行に配置され、つまみ部１、３が互いに
少し離れて向かい合った状態で基端が半円状に湾曲した
連結部５によって互いに連結されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings.
Are arranged substantially parallel to each other, and the base ends are connected to each other by a connecting portion 5 curved in a semicircular shape in a state where the knobs 1 and 3 face each other at a distance from each other.

【００１１】腕部片２、４および連結部５は全長に亘っ
て連続した薄肉の背板６とその内側に中心に沿ってほぼ
全長に亘り突設した補強用のリブ７とからなる断面横Ｔ
形に形成されており、腕部片２、４の外側面に位置して
背板６にすべり止めの凹凸条８が設けられている。The arm pieces 2, 4 and the connecting portion 5 are formed by a thin back plate 6 continuous over the entire length and a reinforcing rib 7 protruding from the inside along the center substantially the entire length. T
The back plate 6 is provided with anti-slip irregularities 8 on the outer surfaces of the arm pieces 2 and 4.

【００１２】一方の腕部片２の中央部内側にはリブ７を
延長して形成された適宜幅の横突縁９および背板６から
延びる背板６とほぼ同一高さの縦突縁１０からなる端面
＋形の係合突縁１１がもう一方の腕部片４へ向かって突
出形成されている。また、もう一方の腕部片４の中央部
内側には下面がリブ７の上面と同一面で適宜幅の係止突
縁１２および上面がリブ７の下面と同一面で適宜幅の係
止突縁１３が前後に縦突縁１０の厚さとほぼ等しい隙間
１４を有し且つ上下にリブ７の厚さとほぼ等しい段差を
有して腕部片２へ向かって突出形成されている。On the inner side of the center of one of the arm pieces 2, a laterally protruding edge 9 having an appropriate width formed by extending a rib 7 and a vertical protruding edge 10 having substantially the same height as the back plate 6 extending from the back plate 6. An end face + shaped engaging projection 11 is formed to project toward the other arm piece 4. On the inner side of the central portion of the other arm piece 4, a locking protruding edge 12 whose lower surface is flush with the upper surface of the rib 7 and is appropriately wide and whose upper surface is flush with the lower surface of the rib 7. The rim 13 has a front and rear gap 14 substantially equal to the thickness of the vertical protruding edge 10, and is formed so as to protrude upward and downward toward the arm piece 2 with a step substantially equal to the thickness of the rib 7.

【００１３】前記の縦突縁１０と隙間１４とは連結部５
を中心とする円上に円弧状に形成されており、且つ腕部
片２、４、連結部５、係合突縁１１、係止突縁１２、１
３は合成樹脂により一体品に形成されている。The vertical protruding edge 10 and the gap 14 are connected to the connecting portion 5.
, And are formed in an arc shape on a circle centered on the
Numeral 3 is formed integrally with a synthetic resin.

【００１４】図１乃至図４の実施例は、腕部片２、４を
挟み押えない状態で係合突縁１１と係止突縁１２、１３
とが僅かに離れており、横突縁９と係止突縁１２、１３
とが互いに突き衝ることなく円滑に重なり合うようにそ
れらの先端部を次第に薄くなる傾斜面に形成した。In the embodiment shown in FIGS. 1 to 4, the engaging projection 11 and the locking projections 12, 13 are held in a state in which the arm pieces 2, 4 are not pinched and pressed.
Are slightly separated from each other, so that the lateral protruding edge 9 and the locking protruding edges 12, 13 are provided.
The tips were formed on an inclined surface that gradually became thinner so that they did not collide with each other.

【００１５】腕部片２、４の外側面を指先で挟み押えて
連結部５の弾性力にうち勝って圧縮すると、横突縁９の
縦突縁１０よりも前方部分の上面および後方部分の下面
と前後の係止突縁１２、１３とがそれぞれ互いに重なり
合ってつまみ１、３を互いに接近させ、脱脂綿、ガー
ゼ、薬品或いは患部を挟みつまむのである。When the outer surfaces of the arm pieces 2 and 4 are pinched and pressed by the fingertips to overcome the elastic force of the connecting portion 5 and are compressed, the upper and lower portions of the horizontal protruding edge 9 and the vertical protruding edge 10 of the vertical protruding edge 10 are formed. The lower surface and the front and rear locking projections 12 and 13 are overlapped with each other, and the knobs 1 and 3 are brought close to each other to pinch and pinch absorbent cotton, gauze, medicine or the affected part.

【００１６】本実施例によると、腕部片２、４が接近を
開始すると直ちに横突縁９と係止突縁１２、１３とが上
下反対面で重なると同時に、縦突縁１０の前面および後
面と係止突縁１２、１３の後端縁および前端縁とがそれ
ぞれ接するようになり、腕部片２、４に斜め方向の力が
加えられてもこれらがねじれを互いに阻止してつまみ部
１、３を上下および前後にずらして喰違わせることがな
い（図４）。According to the present embodiment, as soon as the arm pieces 2 and 4 start approaching, the horizontal protruding edge 9 and the locking protruding edges 12 and 13 overlap on the upper and lower opposite surfaces, and at the same time, the front surface of the vertical protruding edge 10 and The rear surface and the rear edge and the front edge of the locking projections 12, 13 come into contact with each other, and even if an oblique force is applied to the arm pieces 2, 4, they prevent twisting with each other, and the knobs are held together. 1, 3 are not shifted up and down and back and forth so that they do not mix (FIG. 4).

【００１７】図５、図６の実施例は横突縁９の縦突縁１
０よりも前方部分の先端縁上面と後方部分の先端縁下面
とに係合突起１６、１７を形成するとともに、前方の係
止突縁１２の先端縁下面と後方の係止突縁１３の先端縁
上面とに係止突起１８、１９を形成してこれらを互いに
引掛けて係合したものである。FIGS. 5 and 6 show the longitudinal projection 1 of the lateral projection 9.
The engaging projections 16 and 17 are formed on the upper surface of the leading edge of the front portion and the lower surface of the leading edge of the rear portion, and the lower surfaces of the leading edge of the front locking protrusion 12 and the distal end of the rear locking protrusion 13. The locking projections 18 and 19 are formed on the upper surface of the edge, and these are hooked and engaged with each other.

【００１８】また、図７の実施例は縦突縁１０の横突縁
９よりも上方部分の先端縁前面と下方部分の先端縁後面
とに係合突起２１、２２を形成するとともに、前方の係
止突縁１２の先端縁後面と後方の係止突縁１３の先端縁
前面とに係止突起２３、２４を形成してこれらを互いに
引掛け係合したものである。In the embodiment shown in FIG. 7, engaging projections 21 and 22 are formed on the front surface of the leading edge of the vertical projecting edge 10 above the horizontal projecting edge 9 and on the rear surface of the leading edge of the lower portion. The locking projections 23 and 24 are formed on the rear surface of the leading edge of the locking projection 12 and the front surface of the distal end of the locking projection 13 at the rear, and these are hooked and engaged with each other.

【００１９】更に、図８の実施例は横突縁９の縦突縁１
０を挟んだ前後両部分に縦突縁１０と平行な係合溝２
６、２７を形成するとともに、前方の係止突縁１２の先
端縁下面と後方の係止突縁１３の先端縁上面とに係止突
起２８、２９を形成してこれらを互いに引掛け係合した
ものである。Furthermore, the embodiment shown in FIG.
Engagement groove 2 parallel to the vertical ridge 10 at both front and rear portions of
6 and 27 are formed, and locking projections 28 and 29 are formed on the lower surface of the front edge of the front locking projection 12 and the upper surface of the front edge of the rear locking projection 13. It was done.

【００２０】これらの実施例によると、二本の腕部片
２、４を大きく開いた状態に成形し、これらを圧縮して
係合することによってつまみ部１、３が一定開き角度で
正確に向かい合って配置され目的物を更に正確につかむ
ことができるばかりか、連結部５に大きな弾性力を与え
ることができるので係合突縁１１と係止突縁１２、１３
とによるねじれ防止に加えて押え力を解除したときの復
元性にすぐれ、反覆使用に充分に耐えることができる。According to these embodiments, the two arm pieces 2 and 4 are formed in a wide open state, and they are compressed and engaged so that the knobs 1 and 3 can be accurately formed at a constant opening angle. In addition to being able to grasp the object more accurately and being arranged facing each other, a large elastic force can be applied to the connecting portion 5, so that the engaging projection 11 and the locking projections 12, 13 are provided.
In addition to the prevention of torsion caused by the above, the resilience when the holding force is released is excellent, and it can sufficiently withstand repeated use.

【００２１】[0021]

【考案の効果】本考案は、合成樹脂で作られ安価に提供
されて使い捨てに適するピンセットの腕部片に互いに干
渉してねじれを生じさせない係合突縁と係止突縁とを対
向させて設けた構成であるから、先端のつまみ部を上下
および前後にずらせて喰違わせることなく接近させて目
的物を確実に且つ安定よくつまむことができ、且つ成形
時の残留応力による変形も係合突縁と係止突縁とにより
矯正されつまみ部を正確に対向接近させることができる
ものである。According to the present invention, the engaging lip and the locking lip, which are made of synthetic resin and are provided at a low cost and are suitable for disposable tweezers, do not interfere with each other and do not twist. With the structure provided, the knob at the tip can be shifted up and down and back and forth so that they can approach each other without being staggered, so that the object can be pinched reliably and stably, and deformation due to residual stress during molding is also engaged. The tab is corrected by the protruding edge and the locking protruding edge so that the knob portion can be accurately opposed and approached.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本考案の実施例を示す正面図である。FIG. 1 is a front view showing an embodiment of the present invention.

【図２】図１の側面図である。FIG. 2 is a side view of FIG.

【図３】図１のＸ−Ｘ線に沿う拡大断面図である。FIG. 3 is an enlarged sectional view taken along line XX of FIG. 1;

【図４】図１のピンセットを閉じた状態を示す正面図で
ある。FIG. 4 is a front view showing a state in which the tweezers of FIG. 1 are closed.

【図５】本考案の異なる実施例を示す正面部分図であ
る。FIG. 5 is a partial front view showing another embodiment of the present invention.

【図６】図５のＹ−Ｙ線に沿う断面図である。FIG. 6 is a sectional view taken along the line YY of FIG. 5;

【図７】本考案の更に異なる実施例を示す正面部分図で
ある。FIG. 7 is a partial front view showing another embodiment of the present invention.

【図８】本考案の更にまた異なる実施例を示す正面部分
図である。FIG. 8 is a partial front view showing still another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１、３ つまみ部 ２、４ 腕部片 ５ 連結部 ９ 横突縁 １０ 縦突縁 １１ 係合突縁 １２、１３ 係止突縁 1, 3 knob part 2, 4 arm piece 5 connecting part 9 horizontal protruding edge 10 vertical protruding edge 11 engaging protruding edge 12, 13 locking protruding edge

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】 先端につまみ部を有する二本の互いにほ
ぼ平行な腕部片が前記つまみ部を互いに少し離した状態
で対向して基端で連結されているピンセットにおいて、
横突縁と縦突縁とからなる端面＋形の係合突縁が一方の
腕部片の内側に突出形成されているとともに、前記縦突
縁を挟んだ両側で前記横突縁に上下反対面で重なる係止
突縁がもう一方の腕部片の内側に突出形成されており、
且つ合成樹脂で作られていることを特徴とするピンセッ
ト。1. A pair of tweezers in which two substantially parallel arm pieces each having a knob at the distal end are opposed to each other with the knobs slightly apart from each other at a base end thereof.
An end surface + shaped engaging ridge formed of a horizontal ridge and a vertical ridge is formed to protrude inside one arm piece, and is vertically opposed to the horizontal ridge on both sides of the vertical ridge. A locking projection overlapping on the surface is formed to protrude inside the other arm piece,
Tweezers characterized by being made of synthetic resin.